Pump barrel



Nov. 27,1923. #175,817

y V. HAMILTON PUMP BARREL y Filed sept. zo. 1922 WITN ESS: ATTORNEY Patented Nov. 27, 1923. i

UNITED STATES VAN HAMILTON, OF ELDORADO, KANSAS.

v PUMP BARREL.

Application filed September 20, 1922. Serial No. 589,422.

To all whom #may concern:

Be `it known that I, VAN HAMILTON, a citizen of the United States, residing at EL "lorado, in the county -of yButler and State of Kansas, `have invented new and useful Improvements in Pump Barrels, of which the following is a specification.

In oil wells, when the tubing is pulled, the oil that remains in the tubing is permitted to flow on to the ground and is therefore a complete loss. It is the object of this invention to produce a device desi ed to be connected to the workin barrelqbf an oil well pump whereby the oi may be pumped into the well and thus saved when the tubing is drawn outwardly thereof.

The drawing, which accom anies and forms part of this application, illustrates a satisfactory embodiment of the improvement reduced to practice, and wherein:

Figure 1 is an elevation with parts in section, illustrating the improvement connected to the working barrel of an oil well, the

device being in pumping position.

Figure 2 is a similar view but showing the arrangement of parts when the oil in the barrel is to be removed therefrom.

Referring now to the drawing in detail, a

portion of the working barrel of an oil pump is indicated by the numeral 1. The numeral 3 designates a hollow tubular member which is in the nature of a sand catcher. Secured on the open top of the tubular member 3 there is a cap member or nipple 2, to which the lower end of the pipe l is connected. The lower open end of the tubular member 3 has also secured thereto a hollow cap or nipple 4:, the said nipple being directly connected to the flanged'lower edge of a plate or partition 8 that is also connected to the member 3.

Arrangedcentrally in the lower portion of the sand catcher 3, passing through bearing openings in the partition 8, and in the bore there is an anchor pipe 5. The pipe is provided with apertures 7 through which the oil flows, and above the apertures with a fixed collar 6, a spring 6 surrounding the anchor pipe and bearing against the collar and against the lower end of the nipple 4.

The anchor pipe, above the partition plate 8 has secured thereon a fixed collar'9 designed to rest on a ring gasket 12 let 1n an annular depression that surrounds the .anchor pipe and through the apertures 7 central o-pening in the partition plate 8. The partition plate is formed with a downf wardly extending tubular extension 13, and the anchor pipe 5 is provided with apertures 14k which are normally concealed by the sleeve 13 and the bore or opening in the i partition 8.4 Seated in the top of the anchor pipe there 1s a ball valve 11 enclosed by a slotted cage 10.

Secured on the outer wall of the partition 8 there are spring catches l5 designed, when the anchor pipe is raised in the sand catcher 3, to underlie the collar 9 and to hold the anchor pipe in the position illustrated in Figure 2.

When the device is in pumping position, as illustrated in Figure 1, the anchor pipe 5 is moved outwardly through the member 3 by the spring 6 which causes the collar 9 to iirmly seat on the gasket 12 to provide a tight joint between these elements and also a concealing means for the apertures 14. The pump is operated in the usual manner. When the tubing is to be drawn, the working barrel is let down in the well so that the outer end of the anchor pipe 5 will contact the bottom of the well. This will cause the sand catcher 3 to be moved downwardly on the anchor pipe against the pressure of the spring 6H Such movement brings the apertures 14 in the anchor pipe above the partition 8 and also permits the spring catches 15 to underlie the collar 9 so that the anchor pipe and sand catcher are sustained in the position illustrated in Figure 2. The oil remaining in the working barrel and in the sand catcher will flow through the perforations 14 and from thence through the so that the oil will again enter the well and such oil, which otherwise is a total loss, is consequently saved.

I-Iaving described the invention, I claim 1. In a well pumping apparatus, a work ing barrel, a sand catcher secured to the lower end thereof, a partition in the sand catcher above the lower end thereof, an anchor pipe movable through the said lower end and through said partition, said anchor pipe having spaced series of apertures, spring means influencing the anchor pipe in one direction whereby one of said sries of apertures is covered by the partition, means 11o limiting the movement of the anchor pipe in such direction, and a caged valve on the upper end of the anchor pipe.

2. In a well pumping apparatus, a work-. ing barrel, a hollow Sand catcher secured to the lower end or the barrel, a partition in the sand catcher having a central opening therethrough surrounded on its upper face by a compressible gasket and having its lowerface provided with a depending sleeve which also surrounds said opening, an anchor pipe having spaced series of apertures arranged in the opening` in the partition and passing through the lower end of the sand catcher, a iixed collar on the anchor pipe in contact with the gasket, spring means influencing the anchor pipe whereby to cause the collar to frictionallyengage the gasket and to retain the upper series of apertures concealed by the partition and the depending 'sleeve thereon, the other series of apertures being disposed below the sand catcher, spring catches on the partition designed when the anchor pipe is subjected to contact with the bottom of the wall and the sand catcher moved downwardly thereover to engage with the fixed collar to sust-ain the upper series of apertures in the anchor pipe above the partition, and a caged ball valve at the upper end of the anchor pipe.

In testimony whereof I afIiX my signature.

VAN HAMILTON. 

